JP2508620Y2 - Emergency switch for speed change operation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a gear shift operation system configured to switch a gear train of a transmission of a vehicle based on a gear shift signal from a gear shift control means. The present invention relates to an emergency switch of a gear shift operation system, which is attached to the gear shift unit and can operate a gear shift unit instead of the gear shift control means.

(Prior Art) A shift operation system is known in which a transmission of a vehicle is operated based on a shift command signal, and a gear train of the transmission of the vehicle is switched by a gear shift unit.

For example, in the shift operation device for a vehicle as shown in FIG. 3, a change lever 5 is provided at the driver's seat of the vehicle C and outputs a shift command signal and a select command signal for designating a gear position.
Lever position signal generator 1 and a vehicle transmission 2
And a gear shift unit 3 that shifts the gear train, and a gear shift control unit that outputs to the gear shift unit 3 a gear shift output that receives each gear shift command signal and switches the gear train in the transmission 2 according to each gear shift command signal. And a signal processing unit 4.

Such a gear shift operation system includes a lever position signal generator 1,
When an abnormality occurs in the signal processing unit 4, the gear shift unit 3, or the gear shift position switch, it becomes difficult even to move the vehicle to the shelter place thereafter. In order to deal with this, an emergency switch that can move the vehicle at a specific shift stage in an emergency without using the signal processing unit 4 is often attached to the shift operation system.

Such an emergency switch is equipped with a switch board as shown in FIG. 5, for example. The switch 7 is provided with a rotary switch 6 as a manual multistage switch. The rotary switch 6 is configured to output a shift output signal to the second speed and the reverse speed as the emergency travel stage.

Here, the rotary switch 6 can switch the gear train to the second speed when the rotary switch 6 is turned to the right from the off position (N position) which is a general traveling position, and to the reverse gear when turned to the left. That is, the gear is disengaged at the first stage of the switch position on the right, the second speed select line N ₂ is secured at the second stage (see FIG. 4), the shift process is performed at the third stage to the second stage, and the solenoid valve is operated at the fourth stage. Turn off the output to. The same process is performed in the left backward stage.

After switching to the second speed by the rotary switch in this way, the clutch can be engaged and the emergency running can be performed.

(Problems to be solved by the invention) However, although traveling forward to only the second gear does not pose a problem for traveling to a safe position from an emergency state, traveling to return to the garage is easy depending on road conditions. Can be difficult.

Further, since switching between the forward drive side and the reverse drive side is performed by operating a single rotary switch, switching between forward and reverse drive may be erroneous, and improvement in operability is desired.

SUMMARY OF THE INVENTION An object of the present invention is to provide an emergency switch of a gear shift operation system which can easily prevent an erroneous operation and enable traveling at a plurality of forward gears.

(Means for Solving the Problems) In order to achieve the above object, the present invention inputs a shift command signal designating a shift stage to a shift control means and outputs the shift signal of the shift control means to a gear shift unit. A gear shift unit or a gear shift operation system configured to switch the gear train of the transmission, and a manual multi-stage changeover switch for outputting the shift signal to the gear shift unit instead of the shift control means, The manual multi-stage changeover switch includes two switches for forward changeover and backward changeover, and at least the manual multi-stage changeover switch for forward changeover is arranged in each shift and select direction for securing a plurality of forward stages. It is characterized in that it is provided with a plurality of switch switching positions capable of selectively outputting a shift signal.

(Operation) When the forward / reverse switch is switched, the manual multi-stage switch is selectively operated by operating the two switches for the forward speed change and the reverse speed change. In particular, when the forward speed is changed, the shift control means is replaced. As a result, the manual multi-stage changeover switch for changing the forward speed can selectively output the shift signals in the shift and select directions to the gear shift unit, so that a plurality of forward speeds can be sequentially secured.

(Embodiment) FIG. 1 shows an emergency switch of a shift operation system as an embodiment of the present invention.

The emergency switch of this gear shift operation system is attached to the same one as the gear shift operation system attached to the vehicle shown in FIG.

The signal processing unit as the shift control means is composed of a control box 10 used during ordinary traveling and an emergency switch box 11 used during an emergency.

Here, the gear shift unit 16 is an air cylinder (not shown) for switching the shift direction and switching the select direction.
The air cylinder for shifting is equipped with solenoid valves 18a, 18
Driven by b, the select air cylinder moves the solenoid valve 18
It is driven by c, 18d and 18e. As a result, the gear train of the transmission is configured so as to be able to achieve switching to each shift speed of 6 forward gears and 1 reverse gear as shown in FIG.

The control box 10 is composed of a microcomputer and has a fuse box 12, a control circuit 15 connected to a power source 14 via a starter switch 13, and a power circuit 19 which reaches the gear shift unit 16 from this control circuit in a normally closed state. Switching contact 171 for relay 17
And the switching contact row 211 of the second relay 21 for keeping the valve drive circuit 20 connecting the control circuit 15 and the solenoid valves 18a, 18b, 18c, 18d, 18e of the gear shift unit 16 in the normally closed state, and the fuse box 12. First and second relays 17 and 2 attached to the first power supply circuit 22 toward the input point a of the emergency switch box 11.
It consists of 1 and.

The control circuit 15 uses a gear shift command signal from a lever position signal generator (not shown) (see FIG. 3), such as shift command signals SHA, NE, SHB and select command signals SgA, SgB, SgC, Sg.
Upon receiving D, in response to this, it outputs a shift output that selectively drives the five solenoid valves 18a, 18b, 18C, 18d, 18e of the gear shift unit 16.

Here, the control circuit 15 is connected to the regular fuse 121 of the fuse box 12. The gear shift unit 16 is selectively connected to the control circuit 15 and the emergency fuse 122 via the switching contact 171 of the first relay. Therefore, the power supply circuit 19 of the gear shift unit 16 is configured so that the emergency fuse 122 can be used in place of the regular fuse 121 that may be disconnected due to abnormal operation of the control circuit 15.

On the other hand, the emergency switch box 11 has an input point a connected to the first power supply circuit 22 and an input point b connected to the second power supply circuit 23, and further, the branch circuit 20 connected to the valve drive circuit 20.
1 is the normally open switching contact 281, 282, 283, 284, 285 of the fourth relay 28.
Connected through. Both power supply circuits 22 and 23 are connected to the emergency fuse 122 of the fuse box 12.

This emergency switch box 11 has a switch board 24,
A pair of front and rear rotary switches 25, 26 as a multistage shift switch and a fourth and fifth speed selection switch 27 are supported there.

A pair of front and rear rotary switches 25 and 26 are switch circuits 2
9, which is connected to a forward switch circuit 291 having 12 switching contacts and a backward switch circuit 292 having 4 switching contacts. Moreover, the switch circuit 29 is connected to the indicator lamps 31 and 32 for indicating the forward and backward movement and the switching contacts 281, 282, 283, 284 and 285 of the third relay 28.

The indicator lamps 31 and 32 are connected in parallel to the input point b,
The input point b is connected to the emergency fuse 122. A third relay 28 and a timer 30 are connected in series at the input point b, and a buser 33 and a timer 34 are connected in series in parallel with this.
The timer 30 operates to cut the current so that the driving time of the solenoid valve of the gear shift unit does not last longer than a certain time, and protects the solenoid valve.

On the other hand, the timer 34 includes a pair of front and rear rotary switches 25,2.
Each time 6 is switched from the OFF position (the first of the switch switching positions), which is the general traveling position, to any position, the busher 33 is driven for a certain period of time to confirm the shift operation. The trigger signals of both timers 30 and 34 are connected so as to be input from the input point a side which is connected to the indicator lamps 31 and 32 for displaying forward and backward movements via diodes.

The forward switching circuit 291 having twelve switching contacts 291 is turned on to turn on the contact at each switching position.
And the forward display lamp 31 is selectively lowered to drive. On the other hand, a reversing switch circuit having four switching contacts
A switch 292 selectively drives the input point a and the backward display lamp 32 to go low by turning on the contact at each switching position.

As a result, the forward rotary switch 25 selectively switches the first, second, and third relays and the five solenoid valves of the gear shift unit 16, and three forward gear stages are obtained.
The reverse rotary switch 26 is configured so as to selectively switch the first, second and third relays and the five solenoid valves of the gear shift unit 16 to obtain one reverse gear.

Furthermore, the forward switch circuit 291 has a 4th and 5th speed selection switch.
A switching circuit 293 connected to 27 is provided. The switching circuit 293 selectively connects the switching contact 281 or 282 of the third relay 28 to the 10th switch switching position (connected to the 4 (5) line). That is, if this vehicle is frequently used for city circulation or the like, the fourth speed is selected and if it is frequently used for high speed running between cities, the fifth speed is selectively used.

When a vehicle equipped with an emergency switch of such a gear shift operation system generally travels, a shift command signal SHA, NE, SHB or a select command signal SgA, SgB, SgC, which designates a gear stage from a lever position signal generator (not shown), SgD is selectively output to the control box 10. As a result, the control circuit 15 of the control box selectively outputs the shift output for obtaining the commanded shift speed to each solenoid valve of the gear shift unit, and selectively switches the gear train of 6 forward gears and 1 reverse gear,
General driving is performed at the commanded shift speed.

On the other hand, in an emergency, when the shift operation cannot be performed by the control box 10 side, the emergency switch box 11 performs an emergency run. In addition, the 4th and 5th speed selection switch 27
Has selected the 4th or 5th gear suitable for the vehicle (here, it is assumed that the 5th gear is selected below).

In an emergency, the driver selects and uses a pair of front and rear rotary switches 25, 26 according to forward and backward movement.

When each of the rotary switches 25 and 26 for forward and reverse movement is selectively switched from the first switch-off position which is off, the respective indicator lamps 31 and 32 for forward and reverse movement are selectively turned on, and each time selectively. Switching the solenoid valve of the gear shift unit 16,
Moreover, the switching contacts 281, 282, 283, 284, 285 of the third relay 28.
Closes for a certain time to regulate the drive time of the solenoid valve. Also,
The buzzer 33 is driven for a fixed time every switching.

Next, the switching modes of the solenoid valve associated with the switching of the rotary switch 25 are shown in Table 1 below.

It should be noted that when the switch knobs of the rotary switches 25 and 26 for moving forward and backward deviate from the first switch change position, the first and second
Relays 17 and 21 are activated, emergency fuse 122 is selected,
The valve drive circuit 20 is cut off from the control circuit 15 and connected to the switch circuit 29 side.

When the rotary switch 25 for forward and backward movement is switched to the fourth position, it completes the shift of the second speed stage or the reverse stage, the seventh completes the shift of the third speed stage, and the tenth completes the shift of the fifth speed stage. Each time, the clutch (not shown) is intermittently operated by the driver so that the vehicle travels in each stage.

In this table, each rotary switch for forward and backward movement 2
When the switch switching positions of Nos. 2 and 12 are ON, gear removal is considered to be 5,26, and when the switch switching positions of Nos. 3, 5, 6, and 8 are ON, gear removal and selection matching to the N ₂ line are performed.
When the switch position of Nos. 9 and 11 is ON, gear removal and N ₃
It is clear that the selection will be matched to the line.

Here, in particular, the switch switching positions where gear disengagement and selection are performed at positions before and after the switching positions for each of the second speed or the reverse gear, the third speed, and the fifth speed, that is, 3, 5,
Since the 6th, 8th, 9th, and 11th positions are secured, the switch knob can be rotated left and right, and upshifting and downshifting can be easily repeated.

In this way, when the vehicle falls into an emergency state, if the present device is used, the vehicle is switched to the 2nd speed or the reverse gear, 3 speed by the switching operation of the 4th / 5th speed selection switch 27 and the respective forward / reverse rotary switches 25, 26. It is possible to drive in emergency by using multiple speeds, 5th and 5th. In particular, since the forward and reverse stages are operated by separate rotary switches 25 and 26, a forward / reverse changeover switch is not required separately, and an erroneous forward / backward operation can be easily prevented, and operability is excellent.

Moreover, even after the vehicle has escaped, it is possible to continue traveling at high speeds such as the third and fifth speeds, and it is possible to repeat upshifts and downshifts, and by operating the emergency switch box alone. You can easily return to the garage.

Further, as shown in FIG. 2, the knobs of the rotary switches 25, 26 for forward and backward movement have their knobs in the off position for general travel, and
When securing switching positions for each of the shifts of the first speed or the reverse gear, the third speed, and the fifth speed, they are positioned in the vertical direction or the horizontal direction, and there is an advantage that the shift operation of the switch can be easily performed by a fumbling.

(Effect of the Invention) As described above, according to the present invention, since the forward and backward steps are separately operated by the two manual multi-step changeover switches for the forward step changeover and the reverse step changeover, the forward and backward movement changeover switch is separately provided. It is not necessary, it is easy to prevent wrong operation of forward and backward movements, it has excellent operability, and even after the vehicle has escaped from the emergency state, it is possible to continuously drive the vehicle at multiple forward stages at high speed, and the vehicle alone You can easily return to the garage with good operability.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of an emergency switch of a gear shifting operation system according to an embodiment of the present invention, FIG. 2 is a front view of a switch panel used in the apparatus of FIG. 1, and FIG. 3 is a gear shifting operation with an emergency switch. FIG. 4 is a schematic configuration diagram of a vehicle equipped with a system, FIG. 4 is a shift pattern diagram of the device of FIG. 1, and FIG. 5 is a front view of a switch board of a conventional emergency switch. 10 …… Control box, 11 …… Emergency switch box, 15 …… Control circuit, 16 …… Gear shift unit, 24 …… Switch panel, 25 …… Rotary switch, 18a, 18b, 18c, 18d, 18e …… Electromagnetic Valve, 29 ... Switch circuit.

Claims (1)

(57) [Scope of utility model registration request] 1. A shift command signal for designating a shift speed is input to a shift control means, a shift signal of the shift control means is output to a gear shift unit, and the gear shift unit switches the gear train of the transmission. Attached to the gear shifting operation system,
In addition, in the emergency switch of the gear shift operation system including the manual multi-stage changeover switch for outputting the shift change signal to the gear shift unit in place of the shift change control means, the manual multi-stage changeover switch includes two switches for forward shift and reverse shift. At least the above-mentioned manual multi-stage changeover switch for changing the forward speed is provided with a plurality of switch changeover positions capable of selectively outputting shift signals in each shift and select direction for securing a plurality of forward speeds. A special emergency switch for gear shifting operation.